Subtract 54/14 from 45/20
1st number: 2 5/20, 2nd number: 3 12/14
45/20 - 54/14 is -45/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 14 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
45/20 = 45 × 7/20 × 7 = 315/140 - Likewise, for the 2nd fraction, since 14 × 10 = 140,
54/14 = 54 × 10/14 × 10 = 540/140 - Subtract the two like fractions:
315/140 - 540/140 = 315 - 540/140 = -225/140 - After reducing the fraction, the answer is -45/28
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